(2 1/3 - 1 1/2) 2 2/5 = (7/3 - 3/2) 12/5 = (14/6 - 9/6) 12/5 = 5/6 12/5 = 1/6 * 12 = 2
4/15 + 4/15 * 3/4 - 1/3 = 4/15 + 1/5 - 1/3 = 4/15 + 3/15 - 5/15 = 2/15
(3 2/9 - 2 5/6) (4/7 + 1/2) = (29/9 - 17/6) (15/14) = (58/18 - 51/18) (15/14) = 7/18 15/14 = 35/252
18 1/3 1 4/11 - 20 = (55/3) (15/11) - 20 = 275/3 - 60 = 55
7/12 1 1/5 24 7 1/2 = (7/12) (6/5) 24 (15/2) = 7/2 24 15 = 210
7 6/7 6 6/11 + 7 6/7 5/11 = (55/7) (73/11) + (55/7) (5/11) = 475/77 + 275/77 = 750/77 = 750/77
(2 1/3 - 1 1/2) 2 2/5 = (7/3 - 3/2) 12/5 = (14/6 - 9/6) 12/5 = 5/6 12/5 = 1/6 * 12 = 2
4/15 + 4/15 * 3/4 - 1/3 = 4/15 + 1/5 - 1/3 = 4/15 + 3/15 - 5/15 = 2/15
(3 2/9 - 2 5/6) (4/7 + 1/2) = (29/9 - 17/6) (15/14) = (58/18 - 51/18) (15/14) = 7/18 15/14 = 35/252
18 1/3 1 4/11 - 20 = (55/3) (15/11) - 20 = 275/3 - 60 = 55
7/12 1 1/5 24 7 1/2 = (7/12) (6/5) 24 (15/2) = 7/2 24 15 = 210
7 6/7 6 6/11 + 7 6/7 5/11 = (55/7) (73/11) + (55/7) (5/11) = 475/77 + 275/77 = 750/77 = 750/77